with_connection

0th

Percentile

Connections which close themselves

R file connections which are automatically closed.

Usage
with_connection(con, code)

local_connection(con, .local_envir = parent.frame())

Arguments
con

For with_connection() a named list with the connection(s) to create. For local_connection() the code to create a single connection, which is then returned.

code

[any] Code to execute in the temporary environment

.local_envir

[environment] The environment to use for scoping.

Value

[any] The results of the evaluation of the code argument.

See Also

withr for examples

Aliases
  • with_connection
  • local_connection
Examples
# NOT RUN {
with_connection(list(con = file("foo", "w")), {
  writeLines(c("foo", "bar"), con)
})

read_foo <- function() {
  readLines(local_connection(file("foo", "r")))
}
read_foo()
# }
Documentation reproduced from package withr, version 2.1.0, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.